1'-(2-Hydroxy-2-phenylethyl)spiro(4H-3,1-benzoxazine-4,4'-piperidin)-2(1H)-one 1'-(2-Phenyl-2-hydroxyethyl)-(2-oxo-3,4-dihydro-2H-1,3-benzoxazine-4-spiro-4'-piperidine) 84060-24-2 Spiro(4H-3,1-benzoxazine-4,4'-piperidin)-2(1H)-one, 1'-(2-hydroxy-2-phenylethyl)-